diff --git a/clawgo_test b/clawgo_test
index 4cbca60..f53598a 100755
Binary files a/clawgo_test and b/clawgo_test differ
diff --git a/pkg/cron/cron_expr.go b/pkg/cron/cron_expr.go
new file mode 100644
index 0000000..e1c0b66
--- /dev/null
+++ b/pkg/cron/cron_expr.go
@@ -0,0 +1,52 @@
+package cron
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// SimpleCronParser 实现了一个极简的 Cron 表达式解析器 (minute hour day month dayOfWeek)
+// 借鉴 goclaw 可能使用的标准 cron 逻辑，补全 ClawGo 缺失的 Expr 调度能力
+type SimpleCronParser struct {
+	expr string
+}
+
+func NewSimpleCronParser(expr string) *SimpleCronParser {
+	return &SimpleCronParser{expr: expr}
+}
+
+func (p *SimpleCronParser) Next(from time.Time) time.Time {
+	fields := strings.Fields(p.expr)
+	if len(fields) != 5 {
+		return time.Time{} // 格式错误
+	}
+
+	// 这是一个极简实现，仅支持 * 和 数字
+	// 生产环境下建议引入 github.com/robfig/cron/v3
+	next := from.Add(1 * time.Minute).Truncate(time.Minute)
+	
+	// 这里逻辑简化：如果不是 * 且不匹配，则递增直到匹配 (最大搜索 1 年)
+	for i := 0; i < 525600; i++ {
+		if p.match(next, fields) {
+			return next
+		}
+		next = next.Add(1 * time.Minute)
+	}
+	return time.Time{}
+}
+
+func (p *SimpleCronParser) match(t time.Time, fields []string) bool {
+	return matchField(fmt.Sprintf("%d", t.Minute()), fields[0]) &&
+		matchField(fmt.Sprintf("%d", t.Hour()), fields[1]) &&
+		matchField(fmt.Sprintf("%d", t.Day()), fields[2]) &&
+		matchField(fmt.Sprintf("%d", int(t.Month())), fields[3]) &&
+		matchField(fmt.Sprintf("%d", int(t.Weekday())), fields[4])
+}
+
+func matchField(val, field string) bool {
+	if field == "*" {
+		return true
+	}
+	return val == field
+}
diff --git a/pkg/cron/service.go b/pkg/cron/service.go
index 96cdb5d..209a1bc 100644
--- a/pkg/cron/service.go
+++ b/pkg/cron/service.go
@@ -208,6 +208,15 @@ func (cs *CronService) computeNextRun(schedule *CronSchedule, nowMS int64) *int6
 		return &next
 	}
 
+	if schedule.Kind == "cron" && schedule.Expr != "" {
+		parser := NewSimpleCronParser(schedule.Expr)
+		next := parser.Next(time.UnixMilli(nowMS))
+		if !next.IsZero() {
+			ms := next.UnixMilli()
+			return &ms
+		}
+	}
+
 	return nil
 }